Product Description
Polyurethane load wheel SU S850 XL with 8.25 inch nominal diameter, 4.00 inch tread width, engineered for electric lift truck applications. Constructed using proprietary Cushothane XL compound for high load capacity, maximum cut resistance, and XL3 steel bonding technology. Cross-compatible as SU850-XL and equivalent part numbers for electric pallet trucks and reach vehicles.
Specifications
Part Numbers
| Manufacturer Part Number | SU S850 XL |
| Cross-Reference Part Numbers | SU850-XL, SU850XL, SU-850-XL |
| Equivalent Part Numbers | Superior SU850-XL, Generic Parts Service SU850-XL |
| OEM Part Number | SU850-XL |
Frequently Asked Questions
Q: What are the cross-reference part numbers for the SU S850 XL?
A: The SU S850 XL is cross-referenced as SU850-XL, SU850XL, and SU-850-XL. Equivalent parts are supplied by Superior (Superior SU850-XL) and Generic Parts Service (GPS SU850-XL). Always verify the wheel diameter (8.25 inch nominal) and tread width (4.00 inch) match your truck specification before substituting equivalent parts. Some suppliers use different naming conventions but same part fits the same truck model.
Q: Is the SU S850 XL compatible with electric reach vehicles?
A: Yes, the SU S850 XL is engineered for electric lift trucks and reach vehicles. The 8.25 inch diameter and 4.00 inch tread width fit the standard configuration for these machines. Verify your truck manual for compatibility with your specific model year and serial range. Do not assume compatibility without checking; suspension geometry and axle design vary by model.
Q: What is the load capacity and material of the SU S850 XL?
A: The SU S850 XL is constructed from Cushothane XL compound, a proprietary high-durometer polyurethane engineered for heavy-duty warehouse operations. The wheel uses XL3 steel bonding technology for superior adhesion between the polyurethane tread and steel core. Exact load capacity per wheel is not specified in standard documentation; refer to your truck nameplate or contact the OEM with your truck serial number.
Q: How do I diagnose if the SU S850 XL is worn and needs replacement?
A: Inspect the tread for flat spots, deep cracks, or chunks missing from the rolling surface. Check for uneven wear patterns that suggest misalignment. Spin the wheel by hand; if resistance increases or noise develops, the bearing may be failing. If tread depth drops below 0.5 inches or visual damage is present, replace all four wheels as a matched set. The Cushothane XL compound is wear-resistant but not repairable.
Q: Does the SU S850 XL require special maintenance?
A: The SU S850 XL has a sealed ball bearing that requires no lubrication. Weekly visual inspection for damage and monthly bearing noise checks are standard. Do not apply solvents or pressure washers to the wheel assembly; the XL3 bonding technology is durable but can be damaged by harsh chemicals. Clean with a dry cloth only. If bearing seal fails, replace the entire wheel assembly.
Q: What is the expected lifespan of the SU S850 XL wheel?
A: Under normal warehouse duty, the SU S850 XL tread lasts 3 to 5 years before significant wear. The Cushothane XL compound resists cuts and abrasion better than standard polyurethane, extending service life in demanding environments. High-cycle operations, frequent starts and stops, or rough surfaces may reduce lifespan to 18 to 30 months. Replace proactively when tread wears to 0.5 inches or damage develops.